National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

37°F

3°C

Humidity 79%
Wind Speed N 3 mph
Barometer 30.32 in (1026.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 11 Apr 10:56 pm EDT
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Clear, with a low around 35. North wind around 6 mph, with gusts as high as 23 mph.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 51. North wind 5 to 8 mph becoming south in the afternoon.

    High: 51 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Isolated showers after 1am. Mostly cloudy, with a low around 43. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Mostly Cloudy
    then Isolated
    Showers

  • Monday

    Monday: Isolated showers after 2pm. Cloudy, with a high near 55. Breezy, with a southwest wind 18 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.

    High: 55 °F

    Breezy.
    Mostly Cloudy
    then Isolated
    Showers

  • Monday Night

    Monday Night: Scattered showers, mainly before 1am. Patchy fog before 8pm. Otherwise, mostly cloudy, with a low around 47. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 47 °F

    Scattered
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 62. South wind around 7 mph.

    High: 62 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 48. Southwest wind around 6 mph.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61. Southwest wind 6 to 9 mph.

    High: 61 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49. Southwest wind around 6 mph.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 35. North wind around 6 mph, with gusts as high as 23 mph.
Sunday
Increasing clouds, with a high near 51. North wind 5 to 8 mph becoming south in the afternoon.
Sunday Night
Isolated showers after 1am. Mostly cloudy, with a low around 43. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Monday
Isolated showers after 2pm. Cloudy, with a high near 55. Breezy, with a southwest wind 18 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Monday Night
Scattered showers, mainly before 1am. Patchy fog before 8pm. Otherwise, mostly cloudy, with a low around 47. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 62. South wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 48. Southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 61. Southwest wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 49. Southwest wind around 6 mph.
Thursday
Mostly cloudy, with a high near 61. Southwest wind 6 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 47. Southwest wind around 6 mph.
Friday
A chance of showers. Partly sunny, with a high near 59. West wind 5 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 45. Southeast wind 3 to 5 mph.
Saturday
Partly sunny, with a high near 55. Southeast wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
10:14 pm EDT Apr 11, 2026
Forecast Valid:
11pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation